DE3028971C2 - Method for a centrally controlled telecommunication system, in particular a telephone private branch exchange with subscriber-specific memory locations - Google Patents

Description

The invention relates to a method for a centrally controlled telecommunications system, in particular a telephone branch exchange, with a speech path coupling network and for the exchange of switching technology, for the establishment of the connection via the speech path coupling network, data, addresses and control commands between control devices provided for different tasks and connection status individually changeable and connection state individually unchangeable data memories with the data transmission line bundles that enable the exchange of information as well as with various Sentences for internal connections, ίο office and cross connections and special functions and for storing the subscriber-specific data (addresses, authorizations, supplementary data such as call forwarding, etc.) each participant station a certain equal size Allocated amount of space in a data store.

From DE-AS 28 10 283 such a previously mentioned centrally controlled telecommunications system, in particular Telephone private branch exchange known in the individual system units, such as subscriber connections and connection sets, subscriber stations also have certain amounts of storage space in one Data storage are permanently assigned. The individual amounts of storage space are z. B. for subscriber stations the same size and designed in such a way that they also accommodate the maximum number of individual participants Can record data.

It follows from this that, in the case of subscriber stations with little or no additional individual data jo (special authorizations, subscriber dinners, etc.), storage space remains unused. Since these subscriber stations generally make up the majority of the subscriber stations in a private branch exchange, the unused storage space is essential.
j5 From DE-AS 19 49 316 it is known for a central command generator in a telephone system to provide additional storage space in a supplementary memory for both basic data and supplementary data. However, this does not yet provide how with an even distribution of subscriber-individual basic data, if possible, no storage space remains unused for individual subscriber stations with fewer additional data.

The task of the method according to the invention is therefore to consist in determining that for the individual data of the subscriber stations provided storage space evenly, but still so on the individual To distribute subscriber stations that as little storage space as possible remains unused. This is because of this achieves that the same amount of storage space provided for each subscriber station is kept so small, that it contains at most only the individual basic data necessary for all subscriber stations and that in the case of insufficient storage space for some of the subscriber stations due to several Authorizations and necessary individual supplementary data for the respective subscriber station Basic data and additional storage space containing the supplementary data in a supplementary data memory is assigned and that when reading out the individual data from the same amount of storage space first place (first bit) an indication of the presence or absence of an additional storage space can be found.

This has the advantage that the basically allotted amount of storage space is essentially the same is always used and that when a subscriber station really needs an additional storage space

can be assigned, with the basic storage plan already at the beginning of the reading process it is determined whether additional storage space can be expected.

The method according to the invention will be explained below with reference to a figure.
The figure consists of a basic data memory GDSp with the storage locations Spx and Spy and a storage data memory EDSp with the storage location Spy '. ίο

In the case of an aforementioned centrally controlled telephone exchange there are basically data memories in which the individual data of each subscriber station are stored. These data relate, for example, to the address that individual authorizations and additional data such as call forwarding or subsequent switching etc. For the sake of simplicity, storage locations of the same size are assigned to the individual subscriber stations firmly to. these storage locations are basically designed so that all possible for a station Data can be saved there. Since this amount of storage space is generally used for basic and Supplementary data only actually full in a few cases is used, it results that a substantial amount of storage space that cannot be used for other purposes remains unused.

In order to keep this unused amount of memory as small as possible, the memory amount of equal size jo assigned to each subscriber station is kept as low as possible according to the method according to the invention. One shares each subscriber station z. B. only two bytes. These are sufficient to record the basic data (address "A" and, for example, basic authorizations such as authorized "ß" or semi-authorized "C") of a r> subscriber station.
For this purpose, the figure shows the storage space Spx of a subscriber station Tlnx in the basic data memory GDSp. There is sufficient storage space for the basic data »ABC«. If the memory location is read out (from right to left), the read-out controller b.reits recognizes from the first bit (1) that the two bytes available contain all of the information necessary for the subscriber station.

If a subscriber station - for example Tlny - is assigned so much individual data - basic data "ABC" and supplementary data "DE" - that these cannot be accommodated in the two bytes (Spy) assigned to the subscriber station in the basic data memory, then dicitr! Ulneiiuic ( ., taiicn an additional storage space Spy 'assigned in an erosion imingidaienspeicher! Dabßi is stored in the first place in the storage space Spy da', Onvr -.- Wa'c ·:, r-vichcr. » CDSp lü-'for example a zero 'wGiimvh du' »• The Hfiiragfuide control unit can immediately recognize that a storage location (Spy ') has to be stored in the supplementary data memory EDSp for information transfer. In such a case, the storage location Spy essentially only contains the address " A "of the subscriber location (Tlny ) and the address "A '" of the memory location to be queried (Spy') in the supplementary data memory EDSp. This is where both the basic data (A, B. C) and the supplementary data (D, E) and thus the full permanent, individual data of the subscriber station.

The amount of storage space (Spy ' ) allocated to the subscriber station (Tlny) in the supplementary data memory depends on the individual requirements of the subscriber station. The allocated amount of storage space must therefore be provided or changed according to the given or to be changed authorizations and special functions or subscriber services.

As in the case of the basic data memory GDSp, the first bit in the supplementary data memory EDSp also indicates, for example by a stored 1, that all the individual data of the subscriber station are stored in the allocated amount of storage space Spy '. From this notification procedure the possibility can be derived that a subsequent expansion of the additional storage space amount (Spy ') is possible without a general reorganization of the additional data storage. If the querying control unit detects a stored 2 in the first bit when querying the supplementary data memory, then another memory location in this supplementary data memory or in another data memory must be queried for complete information. The corresponding additional address can be expected at the end of the supplementary data.

From the foregoing, it can be seen that the process according to the invention can be carried out in a simple manner is possible, the individual subscriber stations one centrally controlled telecommunication system initially equal amounts of storage space for individual subscribers Allocate data, but also meet a larger storage space requirement of individual stations, with as little unused storage space as possible.

1 sheet of drawings

Claims (4)

Patent claims: 1, method for a centrally controlled telecommunication system, in particular telephone branch exchange, with a speech path coupling network and with data, addresses and control commands between control devices intended for different tasks and connection status-individually changeable and connection status-individually changeable data memories with the data storage devices for the exchange of switching-related data transmitted via the speech path coupling network enabling data transmission line bundles as well as with various sets for internal connections, office and cross connections and special functions and whereby for storing the subscriber-specific data (address, authorizations, supplementary data such as call forwarding, etc.) each subscriber station is assigned a certain equal amount of storage space in a data memory, characterized in that the the same size per subscriber station (TJnx, Tlny) provided A small amount of storage space (Spx. Spy) is kept so small that it contains a maximum of only the individual basic data (A, B, C) necessary for all subscriber stations, and that if there is insufficient storage space (Spy) for some of the subscriber stations (Tlny) due to multiple authorizations and necessary individual Supplementary data (DE) of the respective participant'.ition (Tlny) is assigned to the basic data and the supplementary data (A, B, C, D, E) containing additional storage space (Spy ') in a supplementary data memory (EDSp) and that when reading out the individual Date., An indication of the existence (0) or non-existence (1) of an additional memory space can be taken from the equally large amount of storage space (Spx, Spy) in the first place (first bit). 2. The method according to claim 1, characterized in that with assignment of an additional storage space (Spy ') to a subscriber station (Tlny) in the supplementary data memory the associated amount of memory (Spy') in a storage part for the basic data (ABC) and a memory portion for the supplementary data (DE) is divided. 3. The method according to claim 2, characterized in that the allocated amount of storage space (Spy ') is dependent on the actual need for individn rushing data (ABCDE) for the subscriber station. 4. The method according to claims 2 and 3, characterized in that from the first bit of the allocated amount of memory (Spy ') in Ergänxursgsdatenspeicher (EGDSp) it can be seen whether this amount of memory (Spy') actually all the individual data of the subscriber station (Tlny) contains.